Question

Asked Dec 12, 2019

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Step 1

Find the critical points of A(x). Using A'(x)=0

Step 2

At x=1.5 , A'(x) is going from negative to positive.

Means A(x) is going from decreasing to increasing at x=1.5

So, at x=1.5 there is a local minimum of A(x).

Step 3

At x=4.5 , A'(x) is going from positive to negative

Means A(x) is going from increasing...

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